Hi, Adam,
  I am wondering how you filter out all outgoing packet then. 
  Are all of the packets generated by commercial application or by 
yourself? if by yourself, then it's easy. you can send them to yourself 
and then modify and then resend to true destination. Otherwise, I am not 
sure, but guess you have to set all of the outgoing packet to your machine 
first by anyway.
cheers,
lei

On Mon, 29 Jul 2002, Adam Zeldis wrote:

> So then it is possible?  How about this:  Filtering ALL outgoing packets,
> and then re-sending the ones not containing the specified string...the ones
> that do contain it will get edited and then resent.
> 
> Thanks for any input.
> Adam
> 
> ----- Original Message -----
> From: nergim
> To: [EMAIL PROTECTED]
> Sent: Monday, July 29, 2002 6:39 AM
> Subject: Re: [WinPcap-users] "On the fly" Packet Editing
> 
> 
> Packets you are sniffing is already on the line, hence you must do something
> very tricky to avoid this.
> ----- Original Message -----
> From: Adam Zeldis
> To: [EMAIL PROTECTED]
> Sent: Monday, July 29, 2002 10:57 AM
> Subject: [WinPcap-users] "On the fly" Packet Editing
> 
> 
> I am rather new to development with Winpcap, as well as packet-based
> development in general.
> 
> What I was wondering is this:  Is it possible, with winpcap, to write a
> program that would check each outgoing packet for a specified string, and if
> it contained that string, the packet would then be edited to contain another
> string of the same length and the packet would still be sent as though
> nothing had happened?  Please let me know if this is feasible with winpcap.
> If it isn't what would I need in order to do it?
> 
> Thanks much.
> Adam
> [EMAIL PROTECTED]
> 
> 

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